Move (gnu platform) and (gnu platforms ...) to guix/.

* gnu/platform.scm:
* gnu/platforms/arm.scm:
* gnu/platforms/hurd.scm:
* gnu/platforms/mips.scm:
* gnu/platforms/powerpc.scm:
* gnu/platforms/riscv.scm:
* gnu/platforms/s390.scm:
* gnu/platforms/x86.scm: Move to guix/.

* Makefile.am:
* doc/guix.texi (Porting to a New Platform):
* etc/release-manifest.scm:
* gnu/ci.scm:
* gnu/image.scm:
* gnu/local.mk:
* gnu/packages/bioinformatics.scm:
* gnu/packages/bootstrap.scm:
* gnu/packages/cross-base.scm:
* gnu/packages/instrumentation.scm:
* gnu/packages/linux.scm:
* gnu/system/image.scm:
* gnu/system/images/hurd.scm:
* gnu/system/images/novena.scm:
* gnu/system/images/pine64.scm:
* gnu/system/images/pinebook-pro.scm:
* gnu/system/images/rock64.scm:
* guix/scripts/build.scm:
* guix/scripts/system.scm:
* guix/self.scm: Update (gnu platform...) to (guix platform...).

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

11 files changed, 389 insertions, 3 deletions

diff --git a/guix/platform.scm b/guix/platform.scm
new file mode 100644
index 0000000000..361241cb2e
--- /dev/null
+++ b/guix/platform.scm
@@ -0,0 +1,139 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platform)
+  #:use-module (guix discovery)
+  #:use-module (guix memoization)
+  #:use-module (guix records)
+  #:use-module (guix ui)
+  #:use-module (srfi srfi-1)
+  #:export (platform
+            platform?
+            platform-target
+            platform-system
+            platform-linux-architecture
+            platform-glibc-dynamic-linker
+
+            platform-modules
+            platforms
+            lookup-platform-by-system
+            lookup-platform-by-target
+            lookup-platform-by-target-or-system
+            platform-system->target
+            platform-target->system
+
+            systems
+            targets))
+
+
+;;;
+;;; Platform record.
+;;;
+
+;; Description of a platform supported by GNU Guix.
+;;
+;; The 'target' field must be a valid GNU triplet as defined here:
+;; https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/Specifying-Target-Triplets.html.
+;; It is used for cross-compilation purposes.
+;;
+;; The 'system' field is the name of the corresponding system as defined in
+;; the (gnu packages bootstrap) module.  It can be for instance
+;; "aarch64-linux" or "armhf-linux".  It is used to emulate a different host
+;; architecture, for instance i686-linux on x86_64-linux-gnu, or armhf-linux
+;; on x86_64-linux, using the QEMU binfmt transparent emulation mechanism.
+;;
+;; The 'linux-architecture' is only relevant if the kernel is Linux.  In that
+;; case, it corresponds to the ARCH variable used when building Linux.
+;;
+;; The 'glibc-dynamic-linker' field is the name of Glibc's dynamic linker for
+;; the corresponding system.
+(define-record-type* <platform> platform make-platform
+  platform?
+  (target               platform-target)
+  (system               platform-system)
+  (linux-architecture   platform-linux-architecture
+                        (default #f))
+  (glibc-dynamic-linker platform-glibc-dynamic-linker))
+
+
+;;;
+;;; Platforms.
+;;;
+
+(define (platform-modules)
+  "Return the list of platform modules."
+  (all-modules (map (lambda (entry)
+                      `(,entry . "guix/platforms"))
+                    %load-path)
+               #:warn warn-about-load-error))
+
+(define platforms
+  ;; The list of publically-known platforms.
+  (memoize
+   (lambda ()
+     (fold-module-public-variables (lambda (obj result)
+                                     (if (platform? obj)
+                                         (cons obj result)
+                                         result))
+                                   '()
+                                   (platform-modules)))))
+
+(define (lookup-platform-by-system system)
+  "Return the platform corresponding to the given SYSTEM."
+  (find (lambda (platform)
+          (let ((s (platform-system platform)))
+            (and (string? s) (string=? s system))))
+        (platforms)))
+
+(define (lookup-platform-by-target target)
+  "Return the platform corresponding to the given TARGET."
+  (find (lambda (platform)
+          (let ((t (platform-target platform)))
+            (and (string? t) (string=? t target))))
+        (platforms)))
+
+(define (lookup-platform-by-target-or-system target-or-system)
+  "Return the platform corresponding to the given TARGET or SYSTEM."
+  (or (lookup-platform-by-target target-or-system)
+      (lookup-platform-by-system target-or-system)))
+
+(define (platform-system->target system)
+  "Return the target matching the given SYSTEM if it exists or false
+otherwise."
+  (let ((platform (lookup-platform-by-system system)))
+    (and=> platform platform-target)))
+
+(define (platform-target->system target)
+  "Return the system matching the given TARGET if it exists or false
+otherwise."
+  (let ((platform (lookup-platform-by-target system)))
+    (and=> platform platform-system)))
+
+
+;;;
+;;; Systems & Targets.
+;;;
+
+(define (systems)
+  "Return the list of supported systems."
+  (delete-duplicates
+   (filter-map platform-system (platforms))))
+
+(define (targets)
+  "Return the list of supported targets."
+  (map platform-target (platforms)))
diff --git a/guix/platforms/arm.scm b/guix/platforms/arm.scm
new file mode 100644
index 0000000000..32c0fbc032
--- /dev/null
+++ b/guix/platforms/arm.scm
@@ -0,0 +1,37 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms arm)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (armv7-linux
+            aarch64-linux))
+
+(define armv7-linux
+  (platform
+   (target "arm-linux-gnueabihf")
+   (system "armhf-linux")
+   (linux-architecture "arm")
+   (glibc-dynamic-linker "/lib/ld-linux-armhf.so.3")))
+
+(define aarch64-linux
+  (platform
+   (target "aarch64-linux-gnu")
+   (system "aarch64-linux")
+   (linux-architecture "arm64")
+   (glibc-dynamic-linker "/lib/ld-linux-aarch64.so.1")))
diff --git a/guix/platforms/hurd.scm b/guix/platforms/hurd.scm
new file mode 100644
index 0000000000..baa6c23b41
--- /dev/null
+++ b/guix/platforms/hurd.scm
@@ -0,0 +1,28 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms hurd)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (hurd))
+
+(define hurd
+  (platform
+   (target "i586-pc-gnu")
+   (system "i586-gnu")
+   (glibc-dynamic-linker "/lib/ld.so.1")))
diff --git a/guix/platforms/mips.scm b/guix/platforms/mips.scm
new file mode 100644
index 0000000000..e6fa9eb292
--- /dev/null
+++ b/guix/platforms/mips.scm
@@ -0,0 +1,29 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms mips)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (mips64-linux))
+
+(define mips64-linux
+  (platform
+   (target "mips64el-linux-gnu")
+   (system "mips64el-linux")
+   (linux-architecture "mips")
+   (glibc-dynamic-linker "/lib/ld.so.1")))
diff --git a/guix/platforms/powerpc.scm b/guix/platforms/powerpc.scm
new file mode 100644
index 0000000000..9d0b343bc3
--- /dev/null
+++ b/guix/platforms/powerpc.scm
@@ -0,0 +1,37 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms powerpc)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (powerpc-linux
+            powerpc64le-linux))
+
+(define powerpc-linux
+  (platform
+   (target "powerpc-linux-gnu")
+   (system "powerpc-linux")
+   (linux-architecture "powerpc")
+   (glibc-dynamic-linker "/lib/ld.so.1")))
+
+(define powerpc64le-linux
+  (platform
+   (target "powerpc64le-linux-gnu")
+   (system "powerpc64le-linux")
+   (linux-architecture "powerpc")
+   (glibc-dynamic-linker "/lib/ld64.so.2")))
diff --git a/guix/platforms/riscv.scm b/guix/platforms/riscv.scm
new file mode 100644
index 0000000000..c716c12c12
--- /dev/null
+++ b/guix/platforms/riscv.scm
@@ -0,0 +1,29 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms riscv)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (riscv64-linux))
+
+(define riscv64-linux
+  (platform
+   (target "riscv64-linux-gnu")
+   (system "riscv64-linux")
+   (linux-architecture "riscv")
+   (glibc-dynamic-linker "/lib/ld-linux-riscv64-lp64d.so.1")))
diff --git a/guix/platforms/s390.scm b/guix/platforms/s390.scm
new file mode 100644
index 0000000000..b5477f1e5e
--- /dev/null
+++ b/guix/platforms/s390.scm
@@ -0,0 +1,29 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms s390)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (s390x-linux))
+
+(define s390x-linux
+  (platform
+   (target "s390x-linux-gnu")
+   (system "s390x-linux")
+   (linux-architecture "s390")
+   (glibc-dynamic-linker "/lib/ld64.so.1")))
diff --git a/guix/platforms/x86.scm b/guix/platforms/x86.scm
new file mode 100644
index 0000000000..5338049d6f
--- /dev/null
+++ b/guix/platforms/x86.scm
@@ -0,0 +1,58 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platforms x86)
+  #:use-module (guix platform)
+  #:use-module (guix records)
+  #:export (i686-linux
+            x86_64-linux
+            i686-mingw
+            x86_64-mingw
+            hurd))
+
+(define i686-linux
+  (platform
+   (target "i686-linux-gnu")
+   (system "i686-linux")
+   (linux-architecture "i386")
+   (glibc-dynamic-linker "/lib/ld-linux.so.2")))
+
+(define x86_64-linux
+  (platform
+   (target "x86_64-linux-gnu")
+   (system "x86_64-linux")
+   (linux-architecture "x86_64")
+   (glibc-dynamic-linker "/lib/ld-linux-x86-64.so.2")))
+
+(define i686-mingw
+  (platform
+   (target "i686-w64-mingw32")
+   (system #f)
+   (glibc-dynamic-linker #f)))
+
+(define x86_64-mingw
+  (platform
+   (target "x86_64-w64-mingw32")
+   (system #f)
+   (glibc-dynamic-linker #f)))
+
+(define hurd
+  (platform
+   (target "i586-pc-gnu")
+   (system "i586-gnu")
+   (glibc-dynamic-linker "/lib/ld.so.1")))
diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm
index 4383a399a0..75bbb701ae 100644
--- a/guix/scripts/build.scm
+++ b/guix/scripts/build.scm
@@ -48,7 +48,7 @@
   #:use-module (srfi srfi-35)
   #:use-module (srfi srfi-37)
   #:use-module (gnu packages)
-  #:use-module (gnu platform)
+  #:use-module (guix platform)
   #:use-module ((guix status) #:select (with-status-verbosity))
   #:use-module ((guix progress) #:select (current-terminal-columns))
   #:use-module ((guix build syscalls) #:select (terminal-columns))
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 73e3c299c1..eaa245eb44 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -66,7 +66,7 @@
                  (device-module-aliases matching-modules)
   #:use-module (gnu system linux-initrd)
   #:use-module (gnu image)
-  #:use-module (gnu platform)
+  #:use-module (guix platform)
   #:use-module (gnu system)
   #:use-module (gnu bootloader)
   #:use-module (gnu system file-systems)
diff --git a/guix/self.scm b/guix/self.scm
index 9fff0ade04..9a64051c32 100644
--- a/guix/self.scm
+++ b/guix/self.scm
@@ -888,7 +888,7 @@ itself."
                    ,@(scheme-modules* source "gnu/system")
                    ,@(scheme-modules* source "gnu/services")
                    ,@(scheme-modules* source "gnu/machine")
-                   ,@(scheme-modules* source "gnu/platforms/"))
+                   ,@(scheme-modules* source "guix/platforms/"))
                  (list *core-package-modules* *package-modules*
                        *extra-modules* *core-modules*)
                  #:extensions dependencies